If there’s one thing that’s defined a Rich, Brilliant, Willing product since the studio’s three members graduated from RISD in 2007 and banded together to make furniture, it’s the idea of the mash-up. In most of their pieces, seemingly disparate materials and odd colors come together in a sort of joyful schizophrenia — a lamp with differently colored, awkwardly placed dowel legs, a wood-and-metal coat rack with copper, steel, and plastic pegs, and even a candle holder crowded with tapers, birthday candles, and fat, number-shaped votives. But a funny thing happened this spring: The trio released a series of cast-glass pendant lights with the Los Angeles–based design company Artecnica that were notable not only for their pretty, industrial aesthetic but for their adherence to a single, monochromatic material. “It’s unusual for any object to made of a single part these days,” says Theo Richardson, who with Charles Brill and Alex Williams makes up the trio, their surnames forming the basis for the studio's cheeky name. “Most of the time, things are glued together, screwed together. But for us, this was going from assemblage work to something that’s made of a single piece.”